90416539 has 2 divisors, whose sum is σ = 90416540. Its totient is φ = 90416538.

The previous prime is 90416537. The next prime is 90416561. The reversal of 90416539 is 93561409.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90416539 - 2¹ = 90416537 is a prime.

Together with 90416537, it forms a pair of twin primes.

It is equal to p_5239837 and since 90416539 and 5239837 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 90416498 and 90416507.

It is not a weakly prime, because it can be changed into another prime (90416533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45208269 + 45208270.

It is an arithmetic number, because the mean of its divisors is an integer number (45208270).

Almost surely, 2^90416539 is an apocalyptic number.

90416539 is a deficient number, since it is larger than the sum of its proper divisors (1).

90416539 is an equidigital number, since it uses as much as digits as its factorization.

90416539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 90416539 is about 9508.7611706258. The cubic root of 90416539 is about 448.8307737066.

The spelling of 90416539 in words is "ninety million, four hundred sixteen thousand, five hundred thirty-nine".